David Joseph Gaffin - May 14, 2021 Form 4 Insider Report for Alkermes plc. (ALKS)

Role: SVP, CLO, Alkermes, Inc.
Signature: /s/ Shantale Greenson, attorney-in-fact for David J. Gaffin
Stock symbol: ALKS
Transactions as of: May 14, 2021
Transactions value $: -$9,281
Form type: 4
Date filed: 5/14/2021, 04:47 PM
Next filing: Jun 8, 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALKS	Ordinary Shares	Options Exercise	$40.7K	+2.25K	+3.02%	$18.11	76.8K	May 14, 2021	Direct	F1
transaction	ALKS	Ordinary Shares	Sale	-$50K	-2.25K	-2.93%	$22.23	74.6K	May 14, 2021	Direct	F2

Showing 1 to 2 of 2 entries

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ALKS	Employee Stock Option (Right to Buy)	Options Exercise	$0	-2.25K	-100%	$0.00^*	0	May 14, 2021	Ordinary Shares	2.25K	$18.11	Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F2	This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F3	These options are fully vested in accordance with their terms.